I enjoyed this quite a bit actually! The visuals were really good, although the background sand might be a little overwhelming to the eyes the rest was really pretty, the colors, animation, everything. The gameplay was pretty good too, it had a sense of satisfaction (although i broke the game I believe by pressing alt-enter and it showed me all the weapons :P) buying things had a sense of strategy, higher rate of fire, slower rate, wider range, it was good. The sounds were good generally, the... turrets I guess had a good satisfying sound for each of them, the only problem was the shark death sound, that seemed a bit weird and buggy, and the music was a little repetitive. And for the story, not much of it but, the sand dollars made me laugh so I atleast put 2 stars :P. I believe i survived until wave 22, began to be quite hard hehe.